Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for treating collapse of front slope of tunnel portal
The invention discloses a tunnel portal front slope collapse treatment method which comprises the steps that a concave cavity formed by front slope collapse is backfilled with concrete, and the concave cavity and the periphery of the concave cavity are cleaned; forming a retaining wall at the concave cavity by using light foam concrete, and burying a plurality of steel pipes and steel base plates in the retaining wall according to a preset distance; wherein the steel pipe and the steel base plate are integrally connected, and the steel base plate clings to the bottom of the cavity; and drilling holes in the plurality of steel pipes, and arranging a plurality of cushion pier anchor rods towards the inner layer of the upward slope. According to the method, the load on the top of the tunnel can be reduced while the tunnel side upward slope is reinforced, secondary collapse is avoided to a great extent, and construction safety is fully guaranteed.
本申请公开了一种隧道洞口仰坡垮塌处理方法，包括：采用混凝土对仰坡垮塌形成的凹腔进行回填，并对凹腔及其周围进行清理；使用轻质泡沫混凝土在凹腔处形成挡墙，并在挡墙内按照预设距离埋设多个钢管及钢垫板；其中，钢管与钢垫板一体连接，钢垫板紧贴凹腔底部；在多个钢管中钻孔，向仰坡内层布设多个垫墩锚杆。本申请中，能够实现在对隧道边仰坡进行加固的同时，降低对隧道洞顶的载荷，很大程度上避免了二次垮塌的发生，充分保障了施工安全。
Method for treating collapse of front slope of tunnel portal
The invention discloses a tunnel portal front slope collapse treatment method which comprises the steps that a concave cavity formed by front slope collapse is backfilled with concrete, and the concave cavity and the periphery of the concave cavity are cleaned; forming a retaining wall at the concave cavity by using light foam concrete, and burying a plurality of steel pipes and steel base plates in the retaining wall according to a preset distance; wherein the steel pipe and the steel base plate are integrally connected, and the steel base plate clings to the bottom of the cavity; and drilling holes in the plurality of steel pipes, and arranging a plurality of cushion pier anchor rods towards the inner layer of the upward slope. According to the method, the load on the top of the tunnel can be reduced while the tunnel side upward slope is reinforced, secondary collapse is avoided to a great extent, and construction safety is fully guaranteed.
本申请公开了一种隧道洞口仰坡垮塌处理方法，包括：采用混凝土对仰坡垮塌形成的凹腔进行回填，并对凹腔及其周围进行清理；使用轻质泡沫混凝土在凹腔处形成挡墙，并在挡墙内按照预设距离埋设多个钢管及钢垫板；其中，钢管与钢垫板一体连接，钢垫板紧贴凹腔底部；在多个钢管中钻孔，向仰坡内层布设多个垫墩锚杆。本申请中，能够实现在对隧道边仰坡进行加固的同时，降低对隧道洞顶的载荷，很大程度上避免了二次垮塌的发生，充分保障了施工安全。
Method for treating collapse of front slope of tunnel portal
一种隧道洞口仰坡垮塌处理方法
ZHAO HUQIANG (Autor:in) / CAI WENJUN (Autor:in) / LI XIAOCHUAN (Autor:in) / ZHOU WEIBIN (Autor:in) / HAO JIANPING (Autor:in) / KEIHIRA (Autor:in) / LUO CHANGJIANG (Autor:in) / ZHANG JUN (Autor:in) / DU ENHUA (Autor:in)
03.01.2023
Patent
Elektronische Ressource
Chinesisch
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